package Example07;
class Student{
    private  String name;
    private int age;
    public Student(){}
    public Student (String n){
        name = n;
    }
    public Student(String n, int a){
        name=n;
        age = a;
    }
    public  void  read(){
        System.out.println("我是:"+name+",年龄:"+age);
    }
}
public class Example07 {
    public static void main(String[]args){
        Student stu1 = new Student("张三");
        Student stu2 = new Student("张三",18);
        stu1.read();
        stu2.read();
    }
}